diff --git a/usr.bin/tftp/tftp.1 b/usr.bin/tftp/tftp.1
index 67f3c566d4a0..0456c088caf0 100644
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@@ -1,287 +1,287 @@
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 .\"     @(#)tftp.1	8.2 (Berkeley) 4/18/94
 .\" $FreeBSD$
 .\"
 .Dd March 2, 2020
 .Dt TFTP 1
 .Os
 .Sh NAME
 .Nm tftp
 .Nd trivial file transfer program
 .Sh SYNOPSIS
 .Nm
 .Op Ar host Op Ar port
 .Sh DESCRIPTION
 The
 .Nm
 utility is the user interface to the Internet
 .Tn TFTP
 (Trivial File Transfer Protocol),
 which allows users to transfer files to and from a remote machine.
 The remote
 .Ar host
 may be specified on the command line, in which case
 .Nm
 uses
 .Ar host
 as the default host for future transfers (see the
 .Cm connect
 command below).
 .Sh COMMANDS
 Once
 .Nm
 is running, it issues the prompt
 .Dq Li tftp>
 and recognizes the following commands:
 .Pp
 .Bl -tag -width verbose -compact
 .It Cm \&? Ar command-name ...
 Print help information.
 .Pp
 .It Cm ascii
 Shorthand for "mode ascii"
 .Pp
 .It Cm binary
 Shorthand for "mode binary"
 .Pp
 .It Cm blocksize Ar [size]
 Sets the TFTP blksize option in TFTP Read Request or Write Request packets
 to
 .Ar [size]
 as specified in RFC 2348.
 Valid values are between 8 and 65464.
 If no blocksize is specified, then by default a blocksize of 512 bytes
 will be used.
 .Pp
 .It Cm blocksize2 Ar [size]
 Sets the TFTP blksize2 option in TFTP Read Request or Write Request packets
 to
 .Ar [size] .
 Values are restricted to powers of 2 between 8 and 32768.
 This is a non-standard TFTP option.
 .Pp
 .It Cm connect Ar host Op Ar port
 Set the
 .Ar host
 (and optionally
 .Ar port )
 for transfers.
 Note that the
 .Tn TFTP
 protocol, unlike the
 .Tn FTP
 protocol,
 does not maintain connections between transfers; thus, the
 .Cm connect
 command does not actually create a connection,
 but merely remembers what host is to be used for transfers.
 You do not have to use the
 .Cm connect
 command; the remote host can be specified as part of the
 .Cm get
 or
 .Cm put
 commands.
 .Pp
 .It Cm debug Ar level
 Enable or disable debugging levels during verbose output.
 The value of
 .Ar level
 can be one of
 .Cm packet , simple , options ,
 or
 .Cm access .
 .Pp
 .It Cm get Oo Ar host : Oc Ns Ar file Op Ar localname
 .It Cm get Xo
 .Oo Ar host1 : Oc Ns Ar file1
 .Oo Ar host2 : Oc Ns Ar file2 ...
 .Oo Ar hostN : Oc Ns Ar fileN
 .Xc
 Get one or more files from the remote host.
 When using the
 .Ar host
 argument, the
 .Ar host
 will be used as default host for future transfers.
 If
 .Ar localname
 is specified, the file is stored locally as
 .Ar localname ,
 otherwise the original filename is used.
 Note that it is not possible to download two files at a time, only
 one, three, or more than three files, at a time.
 .Pp
 To specify an IPv6 numeric address for a host, wrap it using square
 brackets like
 .Dq Li [3ffe:2900:e00c:ffee::1234] : Ns Ar file
 to disambiguate the
 colons used in the IPv6 address from the colon separating the host and
 the filename.
 .Pp
 .It Cm mode Ar transfer-mode
 Set the mode for transfers;
 .Ar transfer-mode
 may be one of
 .Em ascii
 or
 .Em binary .
 The default is
 .Em binary .
 .Pp
 .It Cm packetdrop [arg]
 Randomly drop
 .Ar arg
 out of 100 packets during a transfer.
 This is a debugging feature.
 .Pp
 .It Cm put Ar file Op Oo Ar host : Oc Ns Ar remotename
 .It Cm put Ar file1 file2 ... fileN Op Oo Ar host : Oc Ns Ar remote-directory
 Put a file or set of files to the remote host.
 When
 .Ar remotename
 is specified, the file is stored remotely as
 .Ar remotename ,
 otherwise the original filename is used.
 If the
 .Ar remote-directory
 argument is used, the remote host is assumed to be a
 .Ux
 machine.
 To specify an IPv6 numeric address for a
 .Ar host ,
 see the example under the
 .Cm get
 command.
 .Pp
 .It Cm options Ar [arg]
 Enable or disable support for TFTP options.
 The valid values of
 .Ar arg
 are
 .Cm on
 (enable RFC 2347 options),
 .Cm off
 (disable RFC 2347 options), and
 .Cm extra
 (toggle support for non-RFC defined options).
 .Pp
 .It Cm quit
 Exit
 .Nm .
 An end of file also exits.
 .Pp
 .It Cm rexmt Ar retransmission-timeout
 Set the per-packet retransmission timeout, in seconds.
 .Pp
 .It Cm rollover [arg]
 Specify the rollover option in TFTP Read Request or Write
 Request packets.
 After 65535 packets have been transmitted, set the block counter to
 .Ar arg .
 Valid values of
 .Ar arg
 are 0 and 1.  This is a non-standard TFTP option.
 .Pp
 .It Cm status
 Show current status.
 .Pp
 .It Cm timeout Ar total-transmission-timeout
 Set the total transmission timeout, in seconds.
 .Pp
 .It Cm trace
 Toggle packet tracing.
 .Pp
 .It Cm verbose
 Toggle verbose mode.
 .Pp
 .It Cm windowsize Op Ar size
 Sets the TFTP windowsize option in TFTP Read Request or Write Request packets to
 .Op Ar size
 blocks as specified in RFC 7440.
 Valid values are between 1 and 65535.
 If no windowsize is specified,
 then the default windowsize of 1 block will be used.
 .El
 .Sh SEE ALSO
 .Xr tftpd 8
 .Pp
 The following RFC's are supported:
 .Rs
 .%T RFC 1350: The TFTP Protocol (Revision 2)
 .Re
 .Rs
 .%T RFC 2347: TFTP Option Extension
 .Re
 .Rs
 .%T RFC 2348: TFTP Blocksize Option
 .Re
 .Rs
 .%T RFC 2349: TFTP Timeout Interval and Transfer Size Options
 .Re
 .Rs
 .%T RFC 3617: Uniform Resource Identifier (URI) Scheme and Applicability Statement for the Trivial File Transfer Protocol (TFTP)
 .Re
 .Rs
 .%T RFC 7440: TFTP Windowsize Option
 .Re
 .Pp
 The non-standard
 .Cm rollover
 and
 .Cm blksize2
 TFTP options are mentioned here:
 .Rs
 .%T Extending TFTP
-.%U http://www.compuphase.com/tftp.htm
+.%U https://www.compuphase.com/tftp.htm
 .Re
 .Sh HISTORY
 The
 .Nm
 command appeared in
 .Bx 4.3 .
 .Pp
 Edwin Groothuis <edwin@FreeBSD.org> performed a major rewrite of the
 .Xr tftpd 8
 and
 .Nm
 code to support RFC2348.
 .Sh NOTES
 Because there is no user-login or validation within
 the
 .Tn TFTP
 protocol, the remote site will probably have some
 sort of file-access restrictions in place.
 The
 exact methods are specific to each site and therefore
 difficult to document here.
 .Pp
 Files larger than 33488896 octets (65535 blocks) cannot be transferred
 without client and server supporting the TFTP blocksize option (RFC2348),
 or the non-standard TFTP rollover option.